Growing evidence demonstrates the therapeutic potential of psychedelic substances,
particularly psilocybin, in addressing mental health challenges and enhancing
psychological well-being. While psychedelic experiences can catalyse profound positive
changes, they can also be psychologically challenging and potentially destabilising,
underscoring the need for thorough preparation. Studies consistently show that an
individual's psychological state prior to psychedelic administration significantly
influences both the acute experience and its lasting benefits. However, structured
preparation protocols designed to optimise this pre-psychedelic state remain understudied
despite their crucial role in therapeutic outcomes.
Digital health interventions offer a promising solution for delivering standardised
preparation protocols at scale. Meditation-based approaches warrant particular
investigation, as they systematically cultivate both immediate psychological states and
enduring traits (e.g. non-judgemental acceptance) beneficial for psychedelic experiences.
Through regular practice, meditation promotes trait-like metacognitive awareness,
emotional regulation, and tolerance of uncertainty - qualities particularly valuable for
navigating altered states of consciousness. These benefits are supported by
neuroscientific evidence showing that meditation and psychedelics influence similar brain
networks and mechanisms. While traditional meditation training often requires substantial
time investment and in-person instruction, digital platforms can provide efficient
structured guidance without the need for face-to-face support from a trained instructor,
while maintaining essential elements of practice. This combination of accessibility and
evidence-based benefits makes digital meditation platforms particularly well-suited for
preparing individuals for psychedelic experiences.
This randomised controlled feasibility trial evaluates the Digital Intervention for
Psychedelic Preparation (DIPP), a 21-day self-guided program. Forty healthy volunteers
will be randomised 1:1 to either a meditation-based intervention or music-based control
condition. Both groups will engage with identical program structures, differing only in
their daily practice (meditation versus music listening). Following preparation, all
participants will undergo a supervised 25 mg psilocybin session at University College
London, with follow-up assessments conducted in person at 2 weeks and online at 3, 6, and
9 months post-intervention.
The primary outcomes address two key aspects of feasibility: operational feasibility and
intervention adherence. Operational feasibility evaluates study-wide metrics, including
recruitment efficiency (target ≥1 participant per week) and participant retention (target
≥70% completion through the 2-week post-dose follow-up). Intervention adherence focuses
on participant engagement with the DIPP activities (meditation or music listening),
assessed through completion rates for daily sessions, mood check-ins, journal entries,
and weekly tasks, with a target of ≥70% of participants achieving an average completion
rate of 70% or higher. Secondary outcomes, reported descriptively for both conditions,
include implementation measures such as subjective feasibility (SFIS), acceptability
(TFA), and usability (SUS/MARS) ratings. Efficacy measures assess changes in psychedelic
preparedness (PPS) from baseline to post-DIPP intervention, the qualities of the acute
psychedelic experience (11-Dimensional Altered States of Consciousness Scale [11D-ASC]
and Challenging Experience Questionnaire [CEQ]) following dosing, and changes in mental
wellbeing (Warwick-Edinburgh Mental Wellbeing Scale [WEMWBS]) from baseline through the
2-week post-dose follow-up.
As such, this study will investigate the feasibility of implementing a digital
preparation protocol within a research setting, while gathering preliminary data on
engagement, acceptability, and potential efficacy. The findings will inform refinements
to the DIPP platform and protocol, supporting the development of accessible, standardised
preparation methods for psychedelic research and therapy as the field continues to expand
into diverse clinical and community-based settings.